Thanks to the fine folks at Gamepedia, we recently were able to adjust the rating extension to lower the requirements for users to vote. Previously, you needed to be registered for 3 days and make 8 edits before being allowed to rate a build. Now, you merely need to create an account and make two edits (edits to your "User:" page or "User talk:" page count, but not your "UserProfile:" page).
Krschkr has launched two projects to aid in finishing getting PvX's hero teams up-to-date, please give him a hand by testing out builds per the projects and reporting how they perform. For more details, see the links below: